Vol 3 Issue 1 April 2015-September 2015

Abstract: High-speed balancing of bladed rotors is usually performed in a VACUUM chamber to avoid high turbulence power loss. VACUUM chamber with integrated burst protection, makes it possible to high-speed balance and spin-test small to medium sized turbo-rotors right on the shop floor. The innovative system design provides a variety of unique features to absorb the energy released when a rotor burst occurs. Safety "crush zones" are engaged and easily restored in the event of a significant burst. In this projects a VACUUM chamber used for high speed turbine will be designed and modeled in 3D modeling will be done in Pro/Engineer. The VACUUM chamber designed will be easy setup for rotors up to 17,500 lbs., up to 67 inches in diameter, at speeds of up to 60,000 RPM. In this project structural, modal analysis and fatigue analysis will be done in Ansys. The present used material for VACUUM chamber is steel. In this project it is replaced with aluminum alloy, brass and acrylic.

Keywords: VACUUM chamber, High-speed balancing, modeling, designed.

Title: DESIGN, MODELING AND ANALYSIS OF A VACUUM CHAMBER FOR HIGH SPEED TURBINE

Author: Mohammed Saab Abdulsattar

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Leaf springs are one of the oldest suspension components which are still frequently used, especially in automobile vehicles. These are used to absorb the fluctuating loads from the vehicle. Leaf spring is also known as laminated spring or carriage spring or flat spring.  The main  function  of  leaf  spring  is  not  only  to  support  vertical  load  but  also  to  isolate  road  induced  vibrations.  It  is subjected  to  millions  of  load  cycles  leading  to  fatigue  failure.  In  this  connection  an  attempt  is  made  to  study  the design and analysis of master leaf spring Suspension failure including bushes and U-bolts. Propose the improved design of leaf spring, bushes & its installation. This work is carried out on a master leaf spring used by a commercial vehicle. The finite element modelling and analysis of a master leaf spring has been carried out. The material of the leaf spring is SUP9.The FE model of the leaf spring has been generated in CATIA or Pro-E and imported in ANSYS- for finite element analysis, which are most popular CAE tools. The FE analysis of the leaf spring has been performed by discretization of the model in infinite nodes and elements and refining them under defined boundary condition. Bending stress and deflection are the target results. A comparison of both i.e. experimental and FEA results have been done to conclude.

Keywords: Leaf springs, suspension, automobile vehicles, vibrations, cycles leading, U-bolts.

Title: Design of rear suspension system of car Master leaf spring by using the bump load

Author: Miss. Dipmala Savale, Mr. P. G. Damle

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract:  Shot peening is a cold working process in which millions of peening media are shot onto a substrate surface. The impacts of these media produce a layer of compressive stress over the target component. This residual compressive layer has been proven to significantly improve fatigue life by reducing the magnitude of alternating stress applied to the part over a typical life cycle. Several methods have been developed to predict shot peened residual stresses. They have been shown to accurately represent measured residual data using x-ray diffraction. Numerical methods which utilize finite element solvers simulate shot peening media impacting a substrate surface and the resulting plastic deformation. Analytical methods utilize Hertzian theory to calculate the deformation of the substrate surface after a single shot impact, which is then expanded to predict a fully developed residual profile. However, the integration of these methods into analytical systems predicting the actual benefit of shot peening is limited. The new analytical methods, techniques and algorithms developed in this study aim to address the issue of limited integration of shot peening residual stress into structural applications. In this assessment, an APDL algorithm compatible with the ANSYS finite element solver is developed that enables a user to apply these analytical methods and subsequently predict the benefit of shot peening to static structures under varying load conditions. The methodologies and algorithms developed in this assessment successfully predict shot peening profiles and integrate them with finite element static structural solvers. They can be utilized for real industrial applications and solutions can be quickly computed with reasonably sized models.

Keywords: Design and analysis of residual stresses.

Title: Design and Analysis of a Residual Stresses from Shot Peening and Its Analytical and Fem Method

Author: Ennala Sandeep, K.Shravan Kumar

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Defects in Engine Assembly Line tends to occur resulting from various reasons which can be analyzed and removed with the help of six sigma. To reduce number of engine rejections, DMAIC (Define, Measure, Analyse, Improve and Control) improvement methodology is used. In define phase review; the problem is mapped by the issues causing them. In measure phase review, data is collected and process stability as well as process capability is determined. During Analyzing phase review, the causes are identified by identifying the gaps between ideal and actual process. In improvement phase review, brainstorming is done to arrive at an improvement strategy which is planned and implemented. Finally at control phase review, the control plan is validated and further opportunities are identified. The study reports the improvement in engine assembly defects reducing from 9684 PPM to 1500 PPM.  The sigma level is significantly improved from 3.8 to 4.5.

Keywords: Engine Assembly, Six Sigma, DMAIC, SIPOC, PPM.

Title: Six Sigma Implementation on Engine Assembly Line in Analyzing and Improving the Defects

Author: Mayur Patil

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: In any manufacturing industry the presence of precision in the cutting tool life is justified, hence it is essential to study the amount of wear on the cutting tool. The number of times it can be reused for machining the components and the number of tools to be present at any given time to avoid the stoppage of automated line in the manufacturing industry. The objective of the thesis is to study the wear data on the various scrapped tools and increase the tool life which results in one of the major form of cost savings in a manufacturing industry. After analyzing the data collected during the study period the process of standardization of all the important parameters pertaining to a tool can be initiated. The consequence of increased tool life would be direct reduction in the tool purchase costs, effective utilization of tool room resources and further reduced quality related problems in the components.

Keywords: Tool life, automated flow line, insert, wear, GENBA, Rapid I machine.

Title: Enhancement of cutting tool life by wear study

Author: Praveen Kumar k , Gaurav K Lakshman, Jaya Krishna C, karthik M, Midhun A

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: The modern  automotive  industries  are  replacing acceletor  and  clutch pedal  by  lightweight materials such as polymer  composites,  plastic, aluminium  and  its alloys, etc. The purpose of new design is without change in material reduction weight, cost, and improvement in corrosion resistance.

This paper is carried out on a commercial vehicle casted brake pedal lever. The finite element modeling and analysis of a brake pedal lever has been carried out. It includes one brake pedal at its actual mounting position in the vehicle. The FE model of the brake pedal assembly has been generated in CATIA or Pro-E and imported in ANSYS for stress analysis and then optimizing it with the help of Optistruct software, which are most popular CAE tools. The FE analysis of the brake pedal lever has been performed by discretization of the model in finite nodes and elements and refining them under defined boundary condition. Bending stress and deflection and reduced weight are the target results. A comparison of both i.e. baseline and optimized model FEA results have been done to conclude.

Keywords: Optimization, Topology, Stress, FEA.                                 

Title: Optimization of Brake Pedal

Author: Bhagyashri Kurkure, Mr. D. B. Sadaphale

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Modern Industries uses high level of automation with complex machines. The function of automation is to achieve higher production rate with better quality. Therefore machines must remain in operating condition in order to achieve the desired result or goal. This concept has changed the operating philosophy as well technology of the industry. A collective measures taken up by the industry in order to keep the equipment or machine in trouble free environment or in good environment is called maintenance engineering. Operational availability of the machines are taken care by the maintenance department. The concept of maintenance was very old and no proper care was given to the machines. When machines stopped, these machines were discarded or repaired. But in today’s age, these high complex and invested machines need to be properly examined or maintained in order to increase or maximize their availability. [1] When unplanned breakdown or unexpected failure happen due to equipment failure, whole production line stops and production automatically stops. Therefore it would be expensive to bring the production system into running condition under emergency situation. Thus maintenance plays an important role in any industry. According to the study reported by Mobley [2] about 15% to 40% (average 28%) of the total production cost is due to maintenance activity in the factory.

Title: Evaluation of Machine Downtime and Failure Analysis of Components in Paint Manufacturing Unit: Review Paper

Author: Arjun Kotwal, Dr.S.S Dhami, Dr.Sarbjeet Singh

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: This paper reports development of a Thermoacoustic Stirling Engine and experimental investigation carried out using Nitrogen gas as the working gas. Experimental setup mainly consists of a Regenerator Assembly which is the heart of the designed engine and is composed of a Regenerator, hot and cold heat exchangers. Regenerator is sandwiched between hot and cold heat exchangers. Brass circular punched meshes are closely packed within the hot and cold heat exchangers to improve the heat transfer rate and Regenerator tube is packed with stainless steel meshes. Experiment is carried for different working pressures of Nitrogen and for each working pressure Onset temperature, Pressure Amplitude, Frequency of oscillations are measured under no load condition.

Keywords: Thermoacoustic Stirling Engine, Regenerator Assembly, Regenerator, Punched Meshes, Onset tempera- ture, Pressure Amplitude, Frequency.

Title: DEVELOPMENT AND EXPERIMENTAL INVESTIGATION ON THERMOACOUSTIC STIRLING ENGINE

Author: Arun Arogyaswamy .G, Dr.Nagaraja .N

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Injection moulding process is a vast and advantageous process in the field of science and technology. Injection moulding process gives birth to vast application which replaces not only industrial products and parts but also capture home appliances and the products of our day to day life. But from the technology point of view we are still using hit and trial methods. In industries, workmen and craftsmen who are engaged in these operations are only expertise but to a certain extent they are also dependent on hit and trial methods which sometimes increases the manufacturing cost of the product. There is a need to develop a technology which guides the designer that what methods he has to follow to design a particular product. There are basically three step in the injection moulding cycle. Firstly, design of sprue which are tapered to increase the rate of flow. Secondly, design of runner whose efficiency is pre-determined and fixed. Efficiency here refer to smoothness or least obstruction provided to the flow material. Thirdly, selection of the gate which pour the flow material finally into the cavity. Selection of gate is quite a difficult task for the designer; only skilled crafts-men can handle easily. Now again the problem arrives to assemble these the three steps according to the type of cavity. In this paper i tried to develop a system with the help of CAD/CAM which facilitates the user to work on injection moulding operations starting from the cavity to the selection of gates and then to the efficiency of runner and finally to sprue. This results time reduction in designing  process and to a certain extent reduces manufacturing cost also.

Keywords: Moulding, Sprue, Lead time

Title: Gating System Design Optimization for Injection Moulding

Author: Dr. M P Singh, Akhilesh Jaguri

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: An automobile drive shaft is made up of rigid PVC material. It is done in order to reduce the weight of the drive shaft in an automotive transmission system transmission. Some major objectives/advantages of this invention are as follows:

* Reduction in body weight and thus increase in power to weight ratio.

* Transfer same torque using lighter material.

* To present an alternative material for drive shaft.

Keywords: Propeller Shaft, Drive Shaft, Rigid PVC, Automobile, Transmission System, Power – Weight Ratio, Hollow shaft, Torque, Speed, Vibrations, Whirling, etc.

Title: Rigid PVC Propeller Shaft for Automobiles

Author: Shivomendra Patel, Vedagya Bakshi

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Today‘s successful manufacturing organizations require a significant competitive advantage, hence they suffer from many problems to fulfil the customers’ requirements. So they need to implement and develop their Total Productive Maintenance (TPM).

Total Productive Maintenance is a key to the organization by which it can helpful in standing up in the competitive market, so the scope of this project is not only on departmental level but also on the international level is essential. So our project helps to achieve partial artificial intelligence by implementing JISHU HOZEN methodology also known as Autonomous Maintenance.

This project involves stabilizing the bottleneck machine by achieving zero BAD on that machine with the help of implementation of JISHU HOZEN methodology under Total Productive Maintenance (TPM). So the company is moving towards Autonomous maintenance to improve overall efficiency of the plant. Finally project focuses on a long-term change in organization culture.

This project begun with getting familiar with production on channel and knowing the operator and the task performed by them on individual machine, also the supervisor on channel help us with getting familiar and explain the process involved. This takes about a week.

From  the  research,  it  was  shown  that  top  management  support  for  TPM activities is needed and that training is an essential factor for TPM‘s success in improving manufacturing performance.

Keywords: Total Productive Maintenance, Manufacturing Performance, Total Quality Management, Continuous Improvement.

Title: Stabilization of Bottleneck Machine through JISHU HOZEN Methodology

Author: Shrinivas Potdar, Ashish Samal, Akshay Khade, Komal Navagekar, Prof. Pitambar Gadhave

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Air powered vehicles are those which can run on no external aids. In spite of electrical vehicles, these vehicles do not wait for recharging for longer period of time. Refuelling is easier and can be done in fraction of minutes. Most importantly it is having utmost same efficiency without compromising any kind of losses. At present the air technology in the automobile sector is very scarcely been used because of their low range of travel with single fueling. Our system deals with an attempt to make a more efficient air engine to give few more miles to get incorporate with. An attempt is made to convert two wheeler in compressed air charged rotary engine system, by providing air drive with specialized air tank which can hold up to 300bars or 4000psi of pressurized air to reduce space required for fuel (air). Rear wheel drive will serve initial pick up torque which will help the required modifications to vane angle as low as possible.

Keywords: Rotary Engine, Compressed Air, Vane, Alternate Energy, Automobile.

Title: Development of Compressed Air Charged Vehicle

Author: Dhyeya P. Pandya, Nityam Oza

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: A mathematical model of hot-wall condensers used in refrigerators is presented. The model predicts the heat transfer characteristics of condenser and the effects of various design and operating parameters on condenser tube length and capacity. A finite element approach was used to model the condenser. The condenser tube is divided into elemental units, with each element consisting of adhesive tape, refrigerant tube and outer metal sheet. The heat transfer characteristics of each section are then analyses by considering the heat transfer through the tube wall, tape and the outer sheet. Variations in inner heat transfer coefficient and pressure drop are considered depending on temperature, fluid phase, type of flow and orientation of tube. Variation in outer heat transfer coefficient is also taken into account. Various materials were analyzed for the tube, tape and outer sheet. 

Keywords: Condenser, Domestic Refrigerator, Heat Transfer.

Title: Mathematical Modeling of Skin Condensers for Domestic Refrigerator

Author: Mr. Nitin Ghule, Prof. S.D. Mahajan

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Abrasive water jet machining is a non-traditional machining Process that offers a productive alternative to traditional technique. Process parameters of machining are optimized for maximum material removal rate using Particle Swarm Optimization (PSO) Technique. PSO is a relatively new and powerful method for optimization and which is used to obtain optimum solution in given circumferences. This research work attempts to achieve maximum metal removal rate in abrasive water jet machining under all constraints which are for different process parameters such that water pressure, nozzle transverse speed, diameter of nozzle, mass flow rate of water and mass flow rate of abrasive. Obtained results are better than Genetic Algorithm which is other optimization technique.

Keywords: AWJM, PSO, MRR, Titanium.

Title: Optimization of Abrasive Water Jet Machining Process Parameters Using Particle Swarm Optimization

Author: Jigar A. Patel, Arvind K. Gothwal

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

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Abstract: Fused Deposition Modelling (FDM) is one of the rapid prototype process that produce prototypes from plastic materials such as ABS, PLA, Naylon, etc. It is a process that creates parts in an additive layer by layer manner. In FDM process, the critical factors are selected for making component to measure different properties. The design investigates the effect of the process parameters layer thickness, orientation and infill on the tensile strength, tensile module, compressive strength, compressive module, and surface roughness. Experiments are conducted using Taguchi’s design of experiments with three levels for each factor. Experiments were carried out on FDM replicator 2 machines coupled with Maker WareTM software and PLA as main material. Tensile and compressive specimens were prepared as per the ASTM standard. Multi-objective optimization on the basis of ratio analysis (MOORA) and technique for order preferences by similarity to an ideal solution (TOPSIS) method are used to find the ranking of FDM process parameters and also compare the results of MOORA and TOPSIS Method.

Keywords: FDM, Layer Thickness, Orientation, Infill, MOORA, TOPSIS Method.

Title: Evaluation of FDM Process Parameter for PLA Material by Using MOORA-TOPSIS Method.

Author: Priyank B Patel, Jaksan D. Patel, Kalpesh D. Maniya

International Journal of Mechanical and Industrial Technology

ISSN 2348-7593 (Online)

Research Publish Journals